お姉ちゃんとショータくんと。 〜ナカを良くするHのカンケイ〜•Oneechan to Shota-kun to.: Naka wo Yoku suru H no Kankei

My Dear Vampire Lord

Shouta really loves his older sister and wants to take back their once good relationship, but she acts cold towards him. One day their father had to go on a business trip for several days, and Azusa invited her two female friends to stay at her place. But it seems her friends had something planned for her... (Source: VNDB)